[fosterwei]

Reported as "the calculator page is not working". Two of the three tool pages had no calculator on them at all.

Page	Before	After
Unit converter	58 words, 0 forms, 0 inputs	working converter, 478 words
Vial planner	53 words, 0 forms, 0 inputs	working planner, 396 words
Reconstitution calculator	worked correctly	gains syringe scale and two warnings

The reconstitution calculator did work and its arithmetic was correct. The other two rendered a name, a one-line "computes", a one-line "refuses", and stopped.

Nothing in the build could see this. A page with no form still builds, still validates, still passes the link check and still enters the sitemap.

What the two now do

Unit converter handles mg, mcg and ng as fixed ratios, and millilitres to units on U-100, U-50 or U-40. It explains at length why it will not convert international units: an IU is defined per substance by a reference preparation, so there is no general mass equivalent, and a converter that offers one has invented it. That refusal is the tool's stated purpose in the registry, so it is now argued rather than just asserted.

Vial planner reports whole draws (rounding down, because a partial draw is not a draw), the volume of each, how long a vial lasts at a stated frequency, and the remainder that cannot be drawn.

Reconstitution gains the syringe scale as an input instead of assuming U-100, and warns when a draw falls below the smallest graduation on the chosen barrel or exceeds a 1 mL syringe.

All three are wired by one script that picks whichever calculator is present. Astro hoists a component's script into every page that renders it, so three separate scripts would have loaded on all three pages and thrown on the missing elements.

A test that would have caught it

scripts/test_calculators.mjs runs in CI after the build. It extracts the inline module from each built page, runs it against a stub DOM, and asserts on what lands in the output element. It fails when a page has no <form> or no <output>, which is the exact defect that shipped here. 17 assertions.

Writing those tests found an error in my own prose. The worked example said 0.1 mL is "20 units on a U-40 syringe". It is 4. The code was right and the sentence under it was wrong, which is the more dangerous way round, and it is now covered by a test.

They are indexable for the first time

The three tools now have records, so they leave noindex and enter the sitemap. This matters more than the page count suggests:

Query	Clickstream	KD
peptide calculator	114,884	6
peptide dosage calculator	7,530	4
peptide reconstitution calculator	7,479	4
reconstitution calculator	2,798	0

Roughly 130,000 monthly searches at difficulty 0 to 6, which the site was answering with three noindex pages, two of them empty. The directory page is rewritten and indexable too, and titles now name what people actually search for.

Also fixed: CI built with SITE_URL on the apex host, which 308-redirects to www.

Gates

Content validation (59 records), registry check, 36 drafter tests, 17 calculator tests, loop gate 47/47, all five link rules.

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated
research-reference	Ready	Preview	Sep 30, 2026 6:25am UTC